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Finding the Third Proportional to 220,005 and 330,493.50

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Solution

The third proportional to 220,005 and 330,493.50 is: 496,470.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,005 : 330,493.50 = 330,493.50 : x
  2. Step 2: Convert to fraction form
    220,005/330,493.50 = 330,493.50/x
  3. Step 3: Cross multiply
    220,005x = 330,493.50 × 330,493.50
  4. Step 4: Simplify right side
    220,005x = 109,225,953,542.25
  5. Step 5: Solve for x
    x = 109,225,953,542.25/220,005
  6. Step 6: Final answer
    x = 496,470.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.